gnatbind.adb: Correct starting date in --version string.

gnatbind.adb: Correct starting date in --version string.

2013-09-10  Robert Dewar  <dewar@adacore.com>

	* gnatbind.adb: Correct starting date in --version string.
	* gnatdll.adb: Use Check_Version_And_Help_G to implement --help
	and --version.
	* gnatkr.adb: Use Check_Version_And_Help_G to implement --help
	and --version.
	* gnatlink.adb: Correct starting date in --version string.
	* gnatls.adb: Correct starting date in --version string.
	* make.adb: Correct starting date in --version string.

From-SVN: r202465